Ashton Kutcher's debut was seen by 10.3 million people in the 18-49 demographic and a total of 27.8 million viewers.
Last season's debut was seen by 14.7 million viewers, which means that Ashton's debut nearly doubled the Season 8 premiere ratings.
Charlie Sheen's last episode in February was watched by 14.5 million viewers.
The premiere, which dealt with the death of Sheen's Charlie Harper character, included a parade of guest stars like Jeri Ryan, John Stamos, Jenna Elfman and Thomas Gibson. Kutcher's Walden Schmidt character meets Jon Cryer's Alan after Walden tries to drown himself. The two characters bond over loss and thus a new wacky situation was born.
Kat Dennings' '2 Broke Girls' got a healthy viewership from Kutcher's 'Men' debut and pulled in 19.2 million viewers, 7 million in the 18-49 demographic. The 'How I Met Your Mother' two-part premiere was up from last year, part one getting 11.3 million viewers and part two attracting 12.2 million viewers. 'Hawaii Five-0' was down from last year, only grabbing about 12 million viewers.
Over on NBC, 'The Playboy Club' attracted only 5 million viewers total and 1.6 million adults in the 18-49 demographic. Compared to the canceled 'Chase,' which got 2.5 million in the demographic in the same timeslot last season, it's not looking too great for 'The Playboy Club.' 'The Sing Off' also premiered soft and grabbed 5.2 million viewers and a 1.9 in the 18-49 demographic.
Stay tuned for ABC's ratings once they're released.
Watch video of Walden and Alan's meeting from 'Two and a Half Men' below.